diff --git a/apps/webapp/app/env.server.ts b/apps/webapp/app/env.server.ts
index 7c57733ad8f..1f7b4a4f4d0 100644
--- a/apps/webapp/app/env.server.ts
+++ b/apps/webapp/app/env.server.ts
@@ -151,6 +151,7 @@ const EnvironmentSchema = z
     APP_ENV: z.string().default(process.env.NODE_ENV),
     SERVICE_NAME: z.string().default("trigger.dev webapp"),
     SENTRY_DSN: z.string().optional(),
+    SENTRY_ENVIRONMENT: z.string().optional(),
     POSTHOG_PROJECT_KEY: z.string().default("phc_LFH7kJiGhdIlnO22hTAKgHpaKhpM8gkzWAFvHmf5vfS"),
     TRIGGER_TELEMETRY_DISABLED: z.string().optional(),
     AUTH_GITHUB_CLIENT_ID: z.string().optional(),
diff --git a/apps/webapp/sentry.server.ts b/apps/webapp/sentry.server.ts
index 7f8f6deb621..fb4019e6781 100644
--- a/apps/webapp/sentry.server.ts
+++ b/apps/webapp/sentry.server.ts
@@ -39,7 +39,8 @@ if (process.env.SENTRY_DSN) {
     shutdownTimeout: 10,
 
     serverName: process.env.SERVICE_NAME,
-    environment: process.env.APP_ENV,
+    // Falls back to APP_ENV; set SENTRY_ENVIRONMENT to override (e.g. preview deployments) without touching APP_ENV.
+    environment: process.env.SENTRY_ENVIRONMENT ?? process.env.APP_ENV,
 
     // ServiceValidationError is thrown deliberately for user-facing
     // validation failures (quota, parent run state, invalid input). Anchored